20
E46 Models
Front Suspension
The single ball joint, strut axle of the E46 is based on the E36 design. Design and compo-
nent changes were developed to improve the ride quality and handling characteristics. The
following changes are incorporated into the E46 front suspension system:
• A new forged aluminum control arm is used on the E46 (except all-wheel drive). It offers
the advantages of weight reduction and lower unsprung mass.
• Hydraulic bushings are used for the rear lower control arm support.
• Hollow strut piston rods are used to reduce weight
• The steering knuckles are press fit into the strut tubes which reduces the tolerances of
the front suspension geometry.
• The caster has been increased to improve straight line stability.
• The track has been widened for improved cornering.
• Aluminum brake dust shields are used for weight reduction
Altogether there is 5.72 lbs less unsprung weight in the front suspension which enhances
ride comfort and handling.
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